| Issue |
Europhys. Lett.
Volume 56, Number 6, December 2001
|
|
|---|---|---|
| Page(s) | 884 - 890 | |
| Section | Condensed matter: electronic structure, electrical magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00602-4 | |
| Published online | 01 December 2003 | |
Self-assembled magnetic nanostructures of 
with
favoured chemical ordering
1
University of Konstanz, Department of Physics -
Universitätsstr. 10 P.O. Box M621 D-78457 Konstanz,
Germany
2
Institut de Physique et Chimie des Matériaux de
Strasbourg, UMR46, CNRS-ULP 23 rue du Loess, F-67037 Strasbourg, France
Corresponding author: mireille.maret@uni-konstanz.de
Received:
2
April
2001
Accepted:
4
October
2001
(111) nanostructures, prepared by self-assembled
growth on 
(0001) substrates, present a 111-oriented
fcc structure with a hexagonal island shape and a relatively narrow
size distribution. 
-type ordering is already observed
in nanostructures grown at 150
, a temperature
considerably lower than that required to order
continuous films. This change is attributed to the nanoscopic
island shape, which increases the possibilities of surface atomic
arrangements provided by the different growing facets. From the
superparamagnetic behavior of the nanostructures, a strong
decrease of magnetic anisotropy with the occurrence of
ordering is deduced.
PACS: 75.75.+a – Magnetic properties of nanostructures / 81.07.-b – Nanoscale materials and structures: fabrication and characterization / 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
© EDP Sciences, 2001
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